Finding the Fourth Proportional to 486,353.80, 729,530.70 and 131,403.70
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Solution
The fourth proportional to 486,353.80, 729,530.70 and 131,403.70 is: 197,105.55
Step by Step Solution
- Step 1: Write the proportion equation
486,353.80 : 729,530.70 = 131,403.70 : x - Step 2: Convert to fraction form
486,353.80/729,530.70 = 131,403.70/x - Step 3: Cross multiply
486,353.80x = 729,530.70 × 131,403.70 - Step 4: Simplify right side
486,353.80x = 95,863,033,243.59 - Step 5: Solve for x
x = 95,863,033,243.59/486,353.80 - Step 6: Final answer
x = 197,105.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.